Parts/Drivetrain/Spur gears/Hot Racing Steel Mod 1 Steel Spur Gear for Traxxas E Revo 2.0/X-Maxx/XO-1 (50T)
Hot Racing Steel Mod 1 Steel Spur Gear for Traxxas E Revo 2.0/X-Maxx/XO-1 (50T)
Hot Racing

Hot Racing Steel Mod 1 Steel Spur Gear for Traxxas E Revo 2.0/X-Maxx/XO-1 (50T)

Part # HRAERVT50M015.0(4)
Where to buy
$29.88
AMain Hobbies
Seen Oct 12, 2026
$29.88Buy
Prices are as last seen at the store; stock is not tracked.

About this part

The Hot Racing hardened steel Mod 1 spur gear is an optional upgrade for the Traxxas E Revo 2.0, X-Maxx 6S and 8S, Maxx 4S and XO-1 models. Choose from 50, 52 and 54 tooth options.

NOTE:
  • Do NOT use the pin system for setting the X-Maxx gear mesh. Instead, manually set the gear mesh without the pins. Refer to the Traxxas manual for instructions (ref. pg.22 Adjusting Gear Mesh)
  • With the pins removed, use the four 4x16mm button-head cap screws on the bottom to set gear mesh. Loosen the four 4x16mm button-head cap screws. Cut a narrow strip of notebook paper and run it into the gear mesh. Slide the motor and pinion gear into the spur gear. Tighten the four 4x16mm button-head cap screws, and then remove the strip of paper. You should be able to run a fresh strip of paper through the gears without binding them.
Features:
  • CNC machined hardened steel construction
  • Black oxide finished
  • Laser etched tooth count marking
  • Upgrade for factory plastic spur gear
  • Specifications:
    Overall diameter: 52.8mm
    Gear face width: 8mm 

    Includes:

  • One (1) mod 1 steel spur gear

Reviews5.0 · 4 reviewsacross all options

Kenton ArsenaultVerified owneron Hot Racing Steel Mod 1 Steel Spur Gear for Traxxas E Revo 2.0/X-Maxx/XO-1 (50T)

Awesome design that lets you keep your cush drive in the Xmaxx. Which, let's face it. If you love your xmaxx, you need to keep the cush drive. Highly recommend this for any big torque or big power build.

Brian ZamarripaVerified owneron Hot Racing Steel Mod 1 Steel Spur Gear for Traxxas E Revo 2.0/X-Maxx/XO-1 (50T)

Got it to use for my 20/50 gearing I wanted to try. For perfect in the cush drive on my xmaxx. Holding up nicely. No chipping any teeth. Make sure to properly set your mesh. I didn’t use the motor pins.

Eric LarsenVerified owneron Hot Racing Steel Mod 1 Steel Spur Gear for Traxxas E Revo 2.0/X-Maxx/XO-1 (54T)

So far so good. This is the first time in years that I've given Hot Racing another chance. In the past it has been nothing but disappointment from HR. Incorrectly machined parts, low quality materials, etc. This, however, seems to be well-made. I have several runs on my Stock X-Maxx with it now and it's working well. The manufacturing quality of the gear is appreciably good and there is very little runout.

Kenton ArsenaultVerified owneron Hot Racing Steel Mod 1 Steel Spur Gear for Traxxas E Revo 2.0/X-Maxx/XO-1 (46T)

Awesome design that lets you keep your cush drive in the Xmaxx. Which, let's face it. If you love your xmaxx, you need to keep the cush drive. Highly recommend this for any big torque or big power build.

What reviewers say

All four reviews are five-star ratings from verified owners of a steel mod 1 spur gear for Traxxas E-Revo 2.0, X-Maxx and XO-1 that lets X-Maxx owners keep the cush drive. Reviewers mention tooth counts of 46T, 50T and 54T. Reviewers report the gear is holding up, with no chipped teeth and very little runout, and one reviewer notes it runs well on a stock X-Maxx after several runs. One reviewer advises setting mesh carefully and says they did not use motor pins. One reviewer, who had past disappointments with the brand, describes this gear as better made than previous Hot Racing parts. Two reviews are identical text, and the sample is small with no reported negatives.

  • + Keeps cush drive on X-Maxx
  • + Well-made, low runout
  • + No chipped teeth reported
  • + Suited to high torque builds
  • − Requires careful mesh setting
Summary generated from the reviews above.

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